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<h1><a href="../apiOverview.htm">Regular API</a> function</h1>
<h3 class=subsectionBar><a name="simBuildMatrixQ" id="simBuildMatrixQ"></a>simBuildMatrixQ / sim.buildMatrixQ </h3>
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Description 
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<td class=apiTableRightDescr>Builds a transformation matrix based on a position vector and a quaternion. See also the other <a href="../apiFunctionListCategory.htm#coordinatesAndTransformations">matrix/transformation functions</a>.</td>
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C synopsis
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<td class=apiTableRightCSyn>simInt simBuildMatrixQ(const simFloat* position,const simFloat* quaternion,simFloat* matrix)<br></td> 
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<td class=apiTableLeftCParam>C parameters</td> 
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<div><strong>position</strong>: pointer to 3 simFloat values representing the position component</div>
<div><strong>quaternion</strong>: pointer to 4 simFloat values representing the orientation quaternion (x,y,z,w)</div>
<div><strong>matrix</strong>: pointer to 12 simFloat values representing the transformation matrix</div>
<div class=tab>The x-axis of the orientation component of the matrix is (matrix[0],matrix[4],matrix[8])</div>
<div class=tab>The y-axis of the orientation component of the matrix is (matrix[1],matrix[5],matrix[9])</div>
<div class=tab>The z-axis of the orientation component of the matrix is (matrix[2],matrix[6],matrix[10])</div>
<div class=tab>The position component of the matrix is (matrix[3],matrix[7],matrix[11])</div>
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C return value
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<div>-1 if operation was not successful<br>
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Lua synopsis
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<td class=apiTableRightLSyn>table_12 matrix=sim.buildMatrixQ(table_3 position,table_4 quaternion)<br></td> 
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<td class=apiTableLeftLParam>Lua parameters</td> 
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<div><strong>position</strong>: table of 3 numbers representing the position component</div>
<div><strong>quaternion</strong>: table of 4 numbers representing the orientation quaternion (x,y,z,w)</div>
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Lua return values
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<div><strong>matrix</strong>: table containing the transformation matrix (except for the last row). Note: table values in Lua are indexed from 1, not 0</div>
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